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Silverlight 4: How To Use the All New Right Click Context Menu?

, 6 Dec 2009 CPOL
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In this post, I will describe another cool new feature of Silverlight 4

In my previous posts, I discussed about “How to work with Notification API?” & “How to Capture Video from Default Webcam?”. In this post, I will describe another cool new feature (“How to use the all new Right Click Context Menu?”) of Silverlight 4.

Silverlight 4 now has support for right click. You can now register the event “MouseRightButtonDown” & “MouseRightButtonUp” to any FrameworkElement. Hence, no need to use JavaScript to disable the right click option. If you want to disable the right click option, then just implement those events with:

e.Handled = true;

Now if you want to implement a Context Menu on right click, create the Popup Context menu & position it to the proper location. The following code will create the context menu:

private Popup CreateContextMenu(Point currentMousePosition)
{
    Popup popup = new Popup();
    Grid popupGrid = new Grid();
    Canvas popupCanvas = new Canvas();

    popup.Child = popupGrid;
    popupCanvas.MouseLeftButtonDown += (sender, e) => { HidePopup(); };
    popupCanvas.MouseRightButtonDown += (sender, e) => { e.Handled = true; HidePopup(); };
    popupCanvas.Background = new SolidColorBrush(Colors.Transparent);
    popupGrid.Children.Add(popupCanvas);
    popupGrid.Children.Add(CreateContextMenuItems(currentMousePosition));

    popupGrid.Width = Application.Current.Host.Content.ActualWidth;
    popupGrid.Height = Application.Current.Host.Content.ActualHeight;
    popupCanvas.Width = popupGrid.Width;
    popupCanvas.Height = popupGrid.Height;

    return popup;
}

CreateContextMenuItems() will add some context menu items, on click it will show which menu item has been clicked by you. Upto this, I only talked about the creation of the customized context menu. Now we have to show it on right click inside the Silverlight application. In my example, I added a Border control which has the right click event registered. Now check the below implemented code which will be responsible for showing the context menu:

void brdRightClickZone_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
{
    txbMessage.Text = "Right Clicked";
    Point currentMousePosition = e.GetPosition(LayoutRoot);
    ShowPopup(currentMousePosition);
}

private void btnRightClick_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
    e.Handled = true;
}

On right mouse down, I am setting the e.Handled = true. This ensures that this will not show up the default Silverlight context menu & the right mouse up implementation will popup the customized context menu at the current mouse position.

What next? Download the sample application created by me & implement your own logic to create the customized context menu which will open on right click on your Silverlight application.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Kunal Chowdhury (@kunal2383)
Team Leader
India India
Kunal Chowdhury is a Microsoft "Windows Platform Development" MVP (Most Valuable Professional), a Codeproject Mentor, Telerik MVP, Nokia Developer Champion, Speaker in various Microsoft events, Author, passionate Blogger and a Software Engineer by profession.
 
He is currently working in an MNC located in India. He has a very good skill over XAML, C#, Silverlight, Windows Phone, WPF and Windows Store (WinRT) app development. He posts his findings, articles, tutorials in his technical blog and CodeProject.
 
Technical Blog: http://www.kunal-chowdhury.com
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Comments and Discussions

 
GeneralGreat article PinmemberChris Heydemann18-Sep-10 14:05 
GeneralRe: Great article PinmentorKunalChowdhury18-Sep-10 18:47 

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